Verificação de factos: o que sabemos sobre a ligação entre as alterações climáticas e as ondas de calor

euronews (em português)

Verificação de factos: o que sabemos sobre a ligação entre as alterações climáticas e as ondas de calor  Numa altura em que o calor extremo persiste em vastas áreas da Europa, a Euroverify analisa as provas que ligam as alterações climáticas provocadas pelo homem a ondas de calor mais quentes e persistentes.  LEIA MAIS : http://pt.euronews.com/2025/07/02/verificacao-de-factos-o-que-sabemos-sobre-a-ligacao-entre-as-alteracoes-climaticas-e-as-on  Subscreva, euronews está disponível em 12 línguas.

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00:00What is the link between climate change and heatwaves?

00:06As parts of Europe continue to swelter in soaring temperatures,

00:11we've spoken to climate experts to verify the link between climate change and heatwaves.

00:17A heatwave is a prolonged period, usually of at least three days, of much warmer than average weather.

00:23The heatwave threshold temperature varies across Europe,

00:26for example from 25 degrees Celsius in Helsinki to 39 degrees Celsius in Athens.

00:33These thresholds also vary within countries.

00:36Scientists do not directly attribute heatwaves to climate change.

00:40These episodes can happen regardless of rising global temperatures.

00:43But climate change is making heatwaves more frequent, more intense and longer lasting.

00:50Researchers at Carbon Brief have mapped every scientific study

00:53on how climate change has influenced extreme weather events,

00:58such as flooding, drought or heatwaves.

01:00These studies cover 116 heat-related events in Europe.

01:05Of those, 95% were scientifically deemed to have been made more severe

01:11or more likely because of climate change.

01:14This is why scientists say episodes of intense heat will probably become the new normal.

01:20Additional global warming may further increase the frequency and intensity of heatwaves.

01:26And Europe is vulnerable because it's the world's fastest warming continent.

01:31Other studies link Europe's heatwaves to double jet streams,

01:34which is when a band of very strong air coming from the west splits into two branches,

01:39leaving a mass of warm air over Europe.

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